Patterns of Technical Error Among Surgical Malpractice Claims

TLDR

Surgical adverse events are largely driven by technical errors, yet the specific patterns and causes remain poorly understood. The study aims to identify common patterns of technical errors in surgery and to assess whether recommended interventions address these patterns, ultimately suggesting a shift toward improving decision‑making in routine operations for complex patients. The authors reviewed 444 closed surgical malpractice claims from four insurers, using a structured qualitative instrument to analyze technical error characteristics and contributing factors. Technical errors accounted for 52% of injury‑causing claims, caused permanent disability in 49% and death in 16%, were predominantly manual (65%) and often involved experienced surgeons in routine procedures, with 61% linked to patient complexity and 21% to system failures, indicating that current interventions would address only a minority of such errors.

Abstract

To identify the most prevalent patterns of technical errors in surgery, and evaluate commonly recommended interventions in light of these patterns.The majority of surgical adverse events involve technical errors, but little is known about the nature and causes of these events. We examined characteristics of technical errors and common contributing factors among closed surgical malpractice claims.Surgeon reviewers analyzed 444 randomly sampled surgical malpractice claims from four liability insurers. Among 258 claims in which injuries due to error were detected, 52% (n = 133) involved technical errors. These technical errors were further analyzed with a structured review instrument designed by qualitative content analysis.Forty-nine percent of the technical errors caused permanent disability; an additional 16% resulted in death. Two-thirds (65%) of the technical errors were linked to manual error, 9% to errors in judgment, and 26% to both manual and judgment error. A minority of technical errors involved advanced procedures requiring special training ("index operations"; 16%), surgeons inexperienced with the task (14%), or poorly supervised residents (9%). The majority involved experienced surgeons (73%), and occurred in routine, rather than index, operations (84%). Patient-related complexities-including emergencies, difficult or unexpected anatomy, and previous surgery-contributed to 61% of technical errors, and technology or systems failures contributed to 21%.Most technical errors occur in routine operations with experienced surgeons, under conditions of increased patient complexity or systems failure. Commonly recommended interventions, including restricting high-complexity operations to experienced surgeons, additional training for inexperienced surgeons, and stricter supervision of trainees, are likely to address only a minority of technical errors. Surgical safety research should instead focus on improving decision-making and performance in routine operations for complex patients and circumstances.